Sulaimani Journal for Engineering Sciences (SJES)

Modeling and Practical Implementation of Separately Excited DC Motor Water Pump System

1, a Rawaz Hama Aziz H. Karim 2, a Alaa Abdulrahman

a University of Sulaimani, College of Engineering, Electrical Engineering Department

Abstract

The requirement of using DC motor for driven water pump has gained more attention in the irrigation system due to high performance and wide range of speed control of DC motor and difficult improvement in physical behavior of water pump system. This paper studies on modeling and practical implementation of a separately excited DC motor (SEDCM) driven water pump system. The pump capacity and charge flow has been increased by manipulating shaft speed of the SEDCM using field weakening control. The mathematical model is derived for electro mechanical equations of motor as well as the pump equations. Three different tests have been carried out to prove the simulated model performances and validate the system response. For each particular test, the speed and armature current of the motor has been measured as well as the flow rate at constant pump head. Performance of the model has been compared with the practical implementation and they’re matched well.

Keywords:

separately excited DC motor (SEDCM), water pump, field weakening.

References

[1] J Chapman, S. (2004). Electric machinery fundamentals. McGraw-Hill.

[2] Mustapha, A. (2005). Speed Control of Dc Motor using Combined Armature and Field Control. Unpublished doctoral dissertation, Brno University of Technology, Czech Republic.

[3] Zribi, M., & Al-Zamel, A. (2004, March). Field weakening nonlinear control of a separately excited DC motor. In First International Symposium on Control, Communications and Signal Processing, 2004. (pp. 487-491). IEEE.

[4] Asarkar, S. A., & Chaudhari, S. M. (2015). Parameter Identification And Modelling Of Separately Excited Dc Motor. International Journal of Innovations in Engineering Research and Technology, 2(7), 1-8.

[5] Saad, M. (2016). Transient Response of a Separately Excited DC Motor Under No-Load Condition. Available at SSRN 2772630.

[6] Wu, W. (2012). DC motor parameter identification using speed step responses. Modelling and Simulation in Engineering, 2012.

[7] Nayak, B., & Sahu, S. (2019). Parameter estimation of DC motor through whale optimization algorithm. International Journal of Power Electronics and Drive Systems, 10(1), 83.

[8] Hadef, M., & Mekideche, M. R. (2009). Inverse problem methodology for parameter identification of a separately excited DC motor. Journal of Electrical Engineering and Technology, 4(3), 365-369.

[9] Qadir, A. S. (2014). Electro-Mechanical Modeling of Separately Excited DC Motor & Performance Improvement using different Industrial Controllers with Active Circuit Realization. In International Conference on Mechanical, Industrial and Energy Engineering (pp. 1-8).

[10] Vivek, V., Uma, G., Devi, R. K., & Chellamuthu, C. (2002, October). Performance of Induction motor driven submersible pump using Matlab/Simulink. In Proceedings. International Conference on Power System Technology (Vol. 2, pp. 765-768). IEEE.

[11] Udomsuk, S., Areerak, K. L., Areerak, K. N., & Srikaew, A. (2010, June). Parameters identification of separately excited DC motor using adaptive tabu search technique. In 2010 International Conference on Advances in Energy Engineering (pp. 48-51). IEEE.

[12] Pothi, N. (2017, April). Flux-weakening control strategy of separately excited DC machine utilizing voltage regulation for modifying field current. In 2017 2nd International Conference on Control and Robotics Engineering (ICCRE) (pp. 160-164). IEEE.

[13] Paduraru, R., Rosu, E., Gaiceanu, M., Munteanu, T., Dumitriu, T., & Dache, C. (2010, September). Linear control of DC motor drive with field weakening. In 2010 3rd International Symposium on Electrical and Electronics Engineering (ISEEE) (pp. 153-158). IEEE.

[14] Ong, C. M. (1998). Dynamic simulation of electric machinery: using MATLAB/SIMULINK (Vol. 5). Upper Saddle River, NJ: Prentice hall PTR.

[15] Slemon, G. R. (1992). Electric machines and drives. Reading, Mass.; Don Mills, Ont.: Addison-Wesley.

[16] Krause, P. C., Wasynczuk, O., Sudhoff, S. D., & Pekarek, S. D. (2013). Analysis of electric machinery and drive systems (Vol. 75). John Wiley & Sons.

[17] Douglas, J. F., Gasiorek, J. M., Swaffield, J. A., & Jack, L. B. (2005). Fluid mechanics. Pearson education.

[18] Guo, X., Wu, Y., Li, G., & Lu, C. (2017). Dynamic simulation of an induction-motor centrifugal-pump system under variable speed conditions. Elektrotehniski Vestnik, 84(3), 125.

[19] Liu, Z. Z., Luo, F. L., & Rashid, M. H. (2000). High performance nonlinear MIMO field weakening controller of a separately excited dc motor. Electric Power Systems Research, 55(3), 157-164.